Water-back for stoves



(No Model.)

' 4 A. &J. GEDD ES.

Water Back for Stbves.

No. 239,160. Patented March 22,1881.

' dangerous strain.

UNITED STATES PATENT OFFICE.

ALEXANDER GEDDES AND JAMES W. GEDDES, ()F BALTIMORE, MARYLAND.

WATER- BACK FO R STOVES.

SPECIFICATION forming part of Letters Patent No. 239,160, dated March 22, 1881.

ApplicationfiledDecemherEZO,1880. (N0 model.)

To all whom it may concern:

Be it known that we, ALEXANDER GEDnEs and JAMES W. GEDDEs, both of Baltimore city, State of Maryland, have invented certain new and useful Improvements in Water- Backs for Stoves; and we hereby declare the same to be fully, clearly, and exactly described as follows, reference being had to the accompanying drawing, in which a waterback embodying our invention is illustrated in side elevation, partly in section.

Our invention relates to water-backs commonly used in connection with kitchen ranges or stoves for supplying hot water from the boiler; and it has for its object to provide a water-back which will not be liable toburst or burn out should the supply-pipe be frozen or otherwise stopped up.

With water-backs as at present constructed great inconvenience and danger result in the event of the supply being cut off. The water in the water-back must of necessity either blow off in the form of steam through the boiler, or, if the cock be not promptly opened, subject the water-back pipes and boiler to a Of course, when the water-back is dry it is liable to become red-hot, when a sudden supply of cold water incident upon a thawing of the pipes will inevitably crack the iron, or if the water assume the socalled spheroidal state when it first enters the red-hot water-back the latter is nearly certain to burst when cooled sufficiently to allow of the water coming-into contact with the iron.

We obviate the possibility of any annoyance or danger arising from the causes named by constructing the water-back as follows Referring to the accompanying drawing, in which such parts only are shown as are germane to our present invention, A is the water-back, having inlet-pipe a, which latter is furnished with a cook, a.

B is the pipe leading to the boiler, and it is furnished with an escape-pipe, E, having cock 6. A cock, 6, is located on the pipe B. I

O is a discharge-pipe, having two cocks, c 0, between which is a gage-glass, D.

F is the steam-pipe, leading, by preference,

to the chimney, and adapted,when the cock f is opened, to allow of the free escape of steam from the water-back; and G is a reservoir or funnel, connected with the water-back by a pipe, 9, having a cock, 9.

In operation, as soon as the pipe a becomes closed by freezing or otherwise the cook a should be closed, preventing the possibility of the sudden entrance of cold water into the water-backwhenthestoppageisremoved. The communication with the boiler is next cut off (though this is not essential) by turning the cock I), and the reservoir G is supplied with water to feed the water-back. Any steam that is generated escapes through either of the escape-pipes E F, according as the cooks e or f are opened to the chimney.

The level of water in the water-back isindicated by the gage-glass D, andthe supply .may be kept up from the reservoir as the water evaporates.

The pipe 0 is furnished with two cocks, c 0, one on each side of the glass, so that should the latter be broken the water-back will not run dry, the cock 0 being closed.

It is evident that the water-back may thus be kept supplied with water at but little trouble, it being only necessary to supply the reservoir 0, and that by no possibility can it become subjected to any bursting strain, a free escape being furnished for the steam.

When the stoppage of the pipe at is removed the cock I) is opened, as is the cook a, and the others are closed.

The pipe 0 serves to drain the water-back when the fire is allowed to die out, and thus prevent the bursting of the water-back due to freezing.

The pipes, reservoir, &c., may be readily applied to the ordinary forms of ranges now in use, it being only necessary to tap the water-back for their attachment.

What we claim is- 1. A water-back for ranges having a water-supply independent of that from the inletmain, whereby it may be supplied with water in the event of the closing of the said main by freezing or otherwise, as set forth.

2. A water-back having an auxiliary watersupply, G, inlet-main a, and an escape-pipe, bottom of the water-back, as and for the puras set forth. pose set forth.

8. In combination with the Water-back A 1 the pipes a, B, O, and F, furnished with cocks: 5 as described, and the gage D.

4. In combination with a water-back hav- Witnesses: ing a water-supply independent of that from R. D. WILLIAMS,

the inlet-main, an outlet-pipe leading from the J N0. T. MADDOX. 

